You are interested in the evolution of a particular kind of beetle. What sort of analysis might be useful in your study?
A) Look for similarities between the histone genes of other beetles and the one being studied.
B) Find out what kinds of birds eat the beetles, and see what else those birds eat.
C) Compare the beetles to other insects in the area.
D) Find all the places where this particular kind of beetle lives.
A
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In insects, primary symbionts are ________, while secondary symbionts ________
A) heritable / are transmitted horizontally B) able to replicate outside of the host / are obligate symbionts C) required for host reproduction / are not required for host reproduction D) obligate symbionts / have a free-living replicative stage
How many hydrogen bonds form between adenine and thymine?
a. 1 b. 3 c. 2 d. 0
The highest point on a reef is called the:
a. reef crest. b. reef flat. c. reef front. d. back reef. e. leeward edge.
Studies of memory indicate that
a. short-term memory is the product of chemical changes in neurons. b. long-term memory is limited to a few year’s duration. c. long-term memories are lost more frequently than short-term memories. d. long-term memory retention is better for skill memory than for declarative memory. e. short-term memory is limited to several hundred bits of information.